<!DOCTYPE html>
<html>
<head>
    <meta charset='utf-8'/>
    <title></title>
    <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no'/>
    <script src='../assets/mapbox-gl-dev.js'></script>
    <link href='../assets/mapbox-gl.css' rel='stylesheet'/>
    <style>
        body {
            margin: 0;
            padding: 0;
        }

        #map {
            position: absolute;
            top: 0;
            bottom: 0;
            width: 100%;
        }
    </style>
</head>
<body>

<style>
    #buttons {
        width: 90%;
        margin: 0 auto;
    }

    .button {
        display: inline-block;
        position: relative;
        cursor: pointer;
        width: 15%;
        padding: 8px;
        border-radius: 3px;
        margin-top: 10px;
        font-size: 12px;
        text-align: center;
        color: #fff;
        background: #ee8a65;
        font-family: sans-serif;
        font-weight: bold;
    }
</style>
<div id='map'></div>
<ul id="buttons">
    <li id='button-zh' class='button'>China</li>
    <li id='button-fr' class='button'>French</li>
    <li id='button-ru' class='button'>Russian</li>
    <li id='button-de' class='button'>German</li>
    <li id='button-es' class='button'>Spanish</li>
</ul>
<script>
    mapboxgl.accessToken = 'pk.eyJ1IjoibWFvcmV5IiwiYSI6ImNqNWhrenIwcDFvbXUyd3I2bTJxYzZ4em8ifQ.KHZIehQuWW9AsMaGtATdwA';
    var map = new mapboxgl.Map({
        container: 'map',
        style: 'mapbox://styles/mapbox/light-v9',
        center: [16.05, 48],
        zoom: 2.9
    });

    document.getElementById('buttons').addEventListener('click', function (event) {
        var language = event.target.id.substr('button-'.length);
        // Use setLayoutProperty to set the value of a layout property in a style layer.
        // The three arguments are the id of the layer, the name of the layout property,
        // and the new property value.
        map.setLayoutProperty('country-label-lg', 'text-field', '{name_' + language + '}');
    });

</script>

</body>
</html>